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Sustainable water treatment - Column studies on continuous oxidative water treatment with subsequent slow sand filtration and activated carbon filtration.

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  • Full or part time
    Dr J Wenk
  • Application Deadline
    No more applications being accepted
  • Competition Funded PhD Project (European/UK Students Only)
    Competition Funded PhD Project (European/UK Students Only)

Project Description

Pre-oxidation of water is often applied in combination with slow sand or activated carbon filtration to remove contaminants and improve the water quality in an energy efficient way. While the single steps i.e. oxidation, slow sand filtration and activated carbon filtration are reasonably well understood, the combined process is insufficiently described. However, full understanding of this water treatment process is critical to achieve optimum treatment results and to prevent failure. Besides field measurements, small-scale column studies are important because they are a flexible tool to simulate the effect of water quality and process parameter changes occurring in full scale applications.

The main obstacle that has been preventing small-scale studies was the difficulty to establish a low-flow continuous oxidation process that delivers a constant oxidant dose, at least over several months, and to combine it with a subsequent filtration step. Recent developments in oxidant production and delivery methods now allow such a setup enabling sophisticated studies. Therefore, after an initial literature research, the first part of this project will be to design and built a column experiment for continuous oxidative water treatment with subsequent slow sand or activated carbon filtration. Once the systems is running and equilibrated the fate of a range of aquatic contaminants will be investigated and correlated to water quality parameters and redox conditions. The results of the lab-scale study will be benchmarked against data obtained from a full-scale water treatment plant.

Sustainable water treatment is an interdisciplinary field of engineering research. The student should have a background in environmental or chemical engineering, chemistry, environmental sciences or a related discipline. Experience in either analytical chemistry, aquatic oxidation or microbial transformation processes is desirable but not a prerequisite.

In case of interest please do not hesitate to contact Dr Jannis Wenk ([Email Address Removed]) before February 12 2016 via email by describing motivation and including a current CV. The most suitable candidates will be pre-selected and invited to submit a full application through the University of Bath online application system.

Funding Notes

The Annual University Research Studentships (URSA) are highly competitive, University-wide awards for UK and EU students. They cover fees, a generous tax-free allowance of about £ 13,500 per year and a training support grant.

Prospective students should hold or expect to gain an undergraduate First Class degree / MSc Distinction background, or the equivalent from an overseas institution. English language requirements (IELTS) must be met in advance of an offer of funding. No offers of funding will be made conditional on English. Please note that for overseas (e.g. outside EU) students this scholarship provides tuition fees only but NO STIPEND.

References

Please visit the group website http://www.bath.ac.uk/chem-eng/people/wenk/ and http://www.bath.ac.uk/research/centres/wirc/ for more information.

How good is research at University of Bath in Aeronautical, Mechanical, Chemical and Manufacturing Engineering?

FTE Category A staff submitted: 61.00

Research output data provided by the Research Excellence Framework (REF)

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